US Survey estimated that 30% of the rise in drug spending can be 
attributed to price increases or greater use of higher-priced drugs (1 ene 2000 año – 1 ene 2014 año)
Descripción:
 A U.S. Department of Health and Human Services issue brief estimated that 30 percent of the rise in drug spending between 2000 and 2014 could be attributed to price increases or greater use of higher-priced drugs. 
Añadido al timeline:
fecha:
1 ene 2000 año
1 ene 2014 año
 ~ 14 years